Part-to-whole

Donut chart

Use a donut chart like a pie chart for part-to-whole composition with five or fewer categories, but take advantage of the center hole to surface a headline number like total revenue or ARR. It suits KPI-oriented dashboards where the total and its breakdown both matter. As with pie charts, switch to a bar chart once you have more than a handful of categories.

Minimal dvt spec

The panel body for a donut chart. Add an id and title of your own; the sample data is inline, so it renders the moment you paste it into a dvt dashboard. Point it at your warehouse by swapping that sample data for a data block whose query returns the same shape.

View spec

{
  "type": "chart:donut",
  "data": {
    "rows": [
      {
        "plan": "Enterprise",
        "revenue": 1048
      },
      {
        "plan": "Pro",
        "revenue": 735
      },
      {
        "plan": "Team",
        "revenue": 580
      }
    ]
  },
  "spec": {
    "series": [
      {
        "type": "pie",
        "radius": [
          "52%",
          "74%"
        ]
      }
    ]
  }
}

Customize

Every control in dvt's edit tray writes a field of this spec; the variants below change the minimal spec above, and the reference below lists every control and ChartSpec field this type accepts.

Thin ring with labels

Narrow the ring and add outside labels showing each slice's share.

What changed

 {
   "type": "chart:donut",
   "data": {
     "rows": [
       {
         "plan": "Enterprise",
         "revenue": 1048
       },
       {
         "plan": "Pro",
         "revenue": 735
       },
       {
         "plan": "Team",
         "revenue": 580
       }
     ]
   },
   "spec": {
     "series": [
       {
         "type": "pie",
         "radius": [
-          "52%",
-          "74%"
+          "48%",
+          "60%"
         ]
       }
-    ]
+    ],
+    "label": {
+      "show": true,
+      "position": "outside",
+      "derive": "percentOfTotal"
+    }
   }
 }

Full spec

{
  "type": "chart:donut",
  "data": {
    "rows": [
      {
        "plan": "Enterprise",
        "revenue": 1048
      },
      {
        "plan": "Pro",
        "revenue": 735
      },
      {
        "plan": "Team",
        "revenue": 580
      }
    ]
  },
  "spec": {
    "series": [
      {
        "type": "pie",
        "radius": [
          "48%",
          "60%"
        ]
      }
    ],
    "label": {
      "show": true,
      "position": "outside",
      "derive": "percentOfTotal"
    }
  }
}

Conditional color and legend

Recolor the largest slice with a rule and move the legend beside the ring.

What changed

 {
   "type": "chart:donut",
   "data": {
     "rows": [
       {
         "plan": "Enterprise",
         "revenue": 1048
       },
       {
         "plan": "Pro",
         "revenue": 735
       },
       {
         "plan": "Team",
         "revenue": 580
       }
     ]
   },
   "spec": {
     "series": [
       {
         "type": "pie",
         "radius": [
           "52%",
           "74%"
         ]
       }
-    ]
+    ],
+    "colorRules": [
+      {
+        "when": {
+          "field": "revenue",
+          "op": "gte",
+          "value": 1000
+        },
+        "color": "#16263A"
+      }
+    ],
+    "legend": {
+      "show": true,
+      "position": "right"
+    }
   }
 }

Full spec

{
  "type": "chart:donut",
  "data": {
    "rows": [
      {
        "plan": "Enterprise",
        "revenue": 1048
      },
      {
        "plan": "Pro",
        "revenue": 735
      },
      {
        "plan": "Team",
        "revenue": 580
      }
    ]
  },
  "spec": {
    "series": [
      {
        "type": "pie",
        "radius": [
          "52%",
          "74%"
        ]
      }
    ],
    "colorRules": [
      {
        "when": {
          "field": "revenue",
          "op": "gte",
          "value": 1000
        },
        "color": "#16263A"
      }
    ],
    "legend": {
      "show": true,
      "position": "right"
    }
  }
}

Everything you can set

Control	Layer	Where it lands
Data
Chart type	Core	`type`
Chart style	Core	`type`
Label column	Core	`spec.labelField`
Value column	Core	`spec.valueField`
Style
Slice colors	Core	`spec.categoryColors`
Inner radius	ECharts	`spec.series[].radius`
Color scheme	Core	`spec.palette`
Conditional colors	Core	`spec.colorRules`
Labels
Show legend	ECharts	`spec.legend.show`
Legend position	ECharts	`spec.legend.position`
Show data labels	Core	`spec.label.show`
Label position	Core	`spec.label.position`
Format	Core	`spec.label.format`
Label value	Core	`spec.label.derive`
Rotate	Core	`spec.label.rotate`
Font size	Core	`spec.label.fontSize`
Label color	Core	`spec.label.color`
Tooltip	Core	`spec.tooltip`

Chart spec fields

Every chart type accepts these ChartSpec fields. Most are dvt spec fields the renderer compiles for you. grid passes straight through to ECharts; series mixes ECharts series options with dvt's dataField; and any key on xAxis, yAxis, legend, or tooltip that is not a documented dvt key passes through too.

Field	What it does
`xAxis`	One axis, or an array of axes, via `AxisSpec`: type, name, min, max, scale, log, and label formatting.
`yAxis`	Same shape as `xAxis`, for the value axis: type, name, min, max, scale, log, and label formatting.
`series`	Per-series overrides: `type`, `dataField`, `name`, `stack`, `smooth`, `itemStyle`, `lineStyle`, `areaStyle`, `label`.
`legend`	Show or hide the legend, set its position, and format an aggregated value shown next to each entry.
`tooltip`	Choose which fields appear, a totals row, field order, a custom template, and crosshair behavior.
`grid`	A raw ECharts grid box (`left`, `right`, `top`, `bottom`, `containLabel`), passed through unmodified.
`funnelRate`	Show a conversion-rate label on a funnel: `step`, `overall`, `total`, or `none`, with a `precision`.
`label`	Data labels: `show`, `position`, `format`, a derived value (percent of total, delta), rotation, size, color.
`gridlines`	Toggle and style gridlines per axis: `show`, dashed or solid `style`, `width`, and `color`.
`banding`	Alternating background bands along one axis, to make long rows or columns easier to scan.
`plotArea`	Set the plot area's background fill and border color.
`gridPadding`	Explicit `left`, `right`, `top`, and `bottom` padding around the plot area, each a number or a string.
`density`	Overall plot density: `comfortable` (default spacing) or `compact` (tighter margins).
`palette`	Name a registered color scheme to apply to the series, instead of the default categorical colors.
`categoryColors`	Map specific category values to explicit colors, overriding the palette for just those categories.
`colorRules`	Apply a color to a data point the first time one of its ordered `when` conditions matches.
`colorScale`	A continuous color scale (`sequential`, `diverging`, or `piecewise`) with a scheme, domain, and buckets.
`annotations`	Fixed or computed reference lines, bands, points, or text, placed at an axis value or a stat of a field.
`trendline`	Overlay a fitted trend line: `true` for a default linear fit, or an object naming the method and order.
`footnotes`	Up to 50 footnote entries, each a marker plus explanatory text, rendered below the chart.
`sourceNote`	A single line of source-attribution text rendered below the chart.

Build it in dvt

Every chart type on this site is a few lines of the same declarative JSON spec. Read the full spec format, or connect an AI agent to your warehouse and build one live in the quickstart.

Follow the build

dvt is in founding research. Leave your email and we'll reach out when there's something to see — no newsletters, no noise.